C01B 2204/04
Specific amount of layers or specific thickness
C01B2204/04 (Specific amount of layers or specific thickness) appears on 366 US grants and 525 published applications in this corpus.
Search patents in C01B- Granted patents
- 366
- Published applications
- 525
- Assignees
- 279
- Inventors
- 1,052
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 15 |
| 2010 | 3 | 15 |
| 2011 | 5 | 25 |
| 2012 | 10 | 28 |
| 2013 | 10 | 15 |
| 2014 | 12 | 21 |
| 2015 | 21 | 29 |
| 2016 | 25 | 34 |
| 2017 | 19 | 42 |
| 2018 | 22 | 29 |
| 2019 | 32 | 48 |
| 2020 | 29 | 46 |
| 2021 | 26 | 49 |
| 2022 | 41 | 26 |
| 2023 | 29 | 37 |
| 2024 | 32 | 23 |
| 2025 | 34 | 27 |
| 2026 | 12 | 8 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Production of graphene directly from biomass precursor22 Sep 2026US 12,741,873 B2Global Graphene Group, Inc.
- Transparent substrates comprising three-dimensional porous conductive graphene films and methods for making the same8 Sep 2026US 12,729,153 B2Corning Incorporated
- Exfoliation of graphene from biochar11 Aug 2026US 12,703,635 B2
- Graphene copper composite material preparation method based on combination of hot pressing sintering and chemical vapor deposition23 Jun 2026US 12,661,868 B2Crrc Industrial Institute Corporation Limited
- Electrode of energy storage element and manufacturing method thereof2 Jun 2026US 12,646,661 B2Industrial Technology Research Institute
- Graphene and methods of making graphene17 Sep 2026US 2026/0274675 A1
- Method for manufacturing thin film using surface-functionalized graphene layer and thin film manufactured using same13 Aug 2026US 2026/0234004 A1Seoul National University R&Db Foundation
- Graphene-containing composite structure and manufacturing method of same30 Jul 2026US 2026/0217536 A1National Institute of Technology
- Method for preparing catalytic graphitized few-layer coal-based graphene14 May 2026US 2026/0132032 A1Xinjiang University
- A method of edge-functionalising a 2d material30 Apr 2026US 2026/0116761 A1National University of Singapore
Most cited
By later US patents
- Nano-scaled graphene plate nanocomposites for supercapacitor electrodes280US 7,623,340 B1Nanotek Instruments, Inc. · 2009
- Production of graphenic carbon particles utilizing methane precursor material65US 8,486,364 B2PPG Industries Ohio, Inc. · 2013
- Nano-scaled graphene platelets with a high length-to-width aspect ratio57US 7,790,285 B2Nanotek Instruments, Inc. · 2010
- Resonant gas sensor54US 10,502,705 B2Lyten, Inc. · 2019
- Mass production of nano-scaled platelets and products52US 7,785,492 B1Nanotek Instruments, Inc. · 2010